# CVE-2021-45461

> FreePBX, when restapps (aka Rest Phone Apps) 15.0.19.87, 15.0.19.88, 16.0.18.40, or 16.0.18.41 is installed, allows remote attackers to execute arbitrary code, as exploited in the wild in December 2021. The fixed versions are 15.0.20 and 16.0.19.

- **CVSS:** 9.8 (CRITICAL)
- **EPSS:** 3.0%
- **CWE:** NVD-CWE-noinfo

Canonical: https://intel.threadlinqs.com/cve/CVE-2021-45461
Full threat coverage + IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp